.tab {
    padding-left: 300px;
}

.tab_list ul {
    display: inline-block;
    width: 558px;
    height: 40px;
    line-height: 40px;
}

.tab_list ul li {
    float: right;
    display: block;
    list-style: none;
    padding-left: 10px;
    padding-right: 10px;
}

.current {
    background-color: red;
    color: #fff;
}

.item {
    display: none;
}